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Re: Physics of moisture-induced mic noise

Subject: Re: Physics of moisture-induced mic noise
From: "Max" oatcruncher
Date: Thu Jan 7, 2010 4:36 am ((PST))
Hi Mike,
Could we know which microphone it was please?

--- In  "Mike Rooke" <> wrote:
> I tested an omni taking it from outdoors where it had been all night from -19 
> to -15C when i moved it to a sauna at +65C with 60% humidity. Left it for 15 
> minutes recording and listened for any pops /sissle / "wrong" sounds, nothing 
> at all - continued working as expected.  The mic stand was nice and warm and 
> thawed out too :)
> If it drops to -20C again Ill repeat the test, cycling an electret with rapid 
> temperature swings may prematurely age the electret / reduce the sensitivity 
> - but in the interests of testing if the capsule can withstand such thermal 
> shocks / swings, its interesting. 
> -Mike.
> --- In  "Grant Finlay" <grantfinlay@> wrote:
> >
> > FYI: 
> > Don't forget that condensation will form regardless of the mic if you take 
> > it from a cool to warm environment.
> > I leave mine outside overnight or give it chance to acclimatize before 
> > doing any recording.
> > 
> > Regards, 
> > Grant.
> >

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